ummary The instrument is designed and made as per T 0755-2011 "Load Wheel Sand Test for Slurry Mixtures" in the Traffic Standard of the People's Republic of China JTG E20-2011 .It is suitable to control the upper limit of asphalt used in the slurry mixtures .It can confirm the best asphalt content of slurry mixtures together with wet wheel abrasion test .
I.Main technical features
The instrument adopts floor type structure .The structure design,the specifications size of test apparatus ,act,each can meet the requirement of T 0755 standard .Novel design ,reasonable structure and convenient to use .
The part design of the mechanical transmission has safety protection device to prevent from injuring the operator accidentally .It is stable and safe .
Frequency of rolling compaction can be preset by the operator during the test .When the instrument working ,it can automatic count ,until the count value is equal to the set value ,the counting stop and the instrument stop working .
II.Main technical specifications
The frequency of rolling compaction :44 time/min +1time/min
Crank radius :152mm+2mm
The size of the rubber wheel :diameter is 76.5mm+1mm and width is 26.0mm+1.0mm
The hardness of the rubber wheel :HRC60~HRC70
Loaded weight of the rubber wheel :total weight for the trolley horizontally placed is 56.7kg+0.5kg
Test mode :thickness 6.4mm and 12.7 mm are taken as the options .Inner dimension is 50mm*380mm
Sand frame :inner dimension is 355.0mm*38.0mm*0.5mm
Steel cover :dimension is 353mm*36mm*3mm
Physical dimension :1400mm*260mm*450mm
Power supply :AC380V,50Hz,550W(three-phase four-wire system,with zero line)